Kale Rubybor F1
2026 AAS Edible - Vegetable Winner
Kale Rubybor F1

This outstanding kale is a dual-purpose showstopper as it won a Gold Medal award in both the ornamental and vegetable trials…a first occurrence in the AAS trials! Rubybor delivers all-season beauty right to your plate! Its rich, deep purple foliage and uniform, compact habit make it a standout ornamental in any garden or container. Unlike many kales, this selection maintains its excellent color and tidy, bushy shape with shorter internodes, making it ideal for smaller spaces and Southern heat. Best of all, the bountiful (trials show plants yield twice the leaf weight of other reds) beautiful leaves are exceptionally tender and non-bitter, providing a continuous harvest of delicious, high-quality greens from spring until frost. It’s a rare plant that’s perfectly suited for both landscape design and dinner.

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Plant Description
Genus:
 Brassica
Species:
 oleracea
Common Name:
 Kale
Plant Habit:
Bushy
Plant Height:
36 inches
Plant Spread:
24 inches
Fruit Color (Harvest):
Purple
Fruit Shape:
Leafy
Fruit Flavor Description:
Non-bitter
Foliage Color:
 Purple
Breeder:
Bejo Seeds, Inc.
Close Market Comparison:
Redbor, Scarlet
Planting & Care
Garden Spacing:
24 inches
Days To Harvest (Sowing Seed):
70
Days To Harvest (Transplant):
55
Number of Fruits Per Plant:
100 leaves
Duration Type:
Annual
Light Needs:
Full sun
Water Needs:
Normal
Weather Tolerance:
Frost
Season Type:
Cool season
Staking Required:
No
Container:
Yes
Edible Ornamental:
Yes
How to Grow:

Early Spring Crop: Sow 2 seeds per cell, ¼” deep. Seedlings should be ready to transplant in 4–6 weeks. If possible, keep soil temperature over 75°F (24°C) until germination. Transplant outdoors 12–18″ apart in rows 18–36″ apart.

Fall Crop: Start seedlings as above in May and transplant to the garden in June–July. To ensure mature heads, seed the crop early in areas where heavy freezes occur early in fall.

Winter Crop: Successful kale crops can be grown where winters are mild and temperatures rarely fall below 32°F (0°C). Transplants can be set out from September to February in these regions.

Professional Grower Culture Information

 

Judges Observations
  • “Plants did wonderfully all season long; they have great color and are very compact.”
  • “Great purple color! Not too big and ideal for southern heat.”
  • “Outstanding foliage color all season and excellent plant habit.”
  • “The darker color really makes it a standout.”
  • “More bushy with shorter internodes and non-bitter, tender leaves.”
  • “Beautiful plant and very tender leaves.”
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